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Soils of Bihar
■ Bihar is primarily an agricultural state and almost all the economic activities are directly or indirectly dependent on soil. The soil covering most of Bihar is thick alluvium which shrouds the Siwalik and older tertiary rocks. The soil is mostly fresh loam replaced every year by intermittent deposition of silt, clay and sand by different rivers. It lacks phosphoric acid, nitrogen and humus but potash and lime are generally present in large amounts. There are three major types of soil in Bihar:
Agriculture Sector in Bihar
■ A griculture is the mainstay of economies such as Bihar, underpinning their food security, employment, and rural development. About 74% of the workforce in Bihar depend on agricultural and allied activities for their livelihood. Besides generating employment, it also provides raw material to industries, augments food supply and assists in poverty alleviation. • In 2019-20, the overall contribution of the agricultural and allied sectors to state's GDP stood at 18.7% . ■ Land Use Pattern